MATHEMATICAL MODELING OF DATA TRANSMISSION SYSTEM IN COMMUNICATION NETWORKS/DUOMENŲ PERDAVIMO RYŠIO TINKLAIS MATEMATINIS MODELIAVIMAS

Probability failure in operation as well as error probability at fixed frequency band, number of users, and data transmission speed have been analyzed. Santrauka Išnagrinėta aptarnavimo atmetimo tikimybė bei klaidų tikimybė fiksuotų dažnių juostose, abonentų skaičiaus ir informacijos perdavimo greičio nustatyme.

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Dynamic Data Transmission Technique for Expendable Current Profiler

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.219-220.436 ◽

2011 ◽

Vol 219-220 ◽

pp. 436-440 ◽

Cited By ~ 1

Author(s):

Qi Sheng Zhang ◽

Ming Deng ◽

Qi Wang ◽

Yong Qiang Feng ◽

Rui Yang

Keyword(s):

Data Transmission ◽

Transmission System ◽

Transmission Characteristics ◽

Transmission Technique ◽

Current Profiler ◽

Data Transmission System ◽

And Performance ◽

Base Band ◽

Research And Design ◽

Transmission Speed

As an expendable profiler in marine environment, XCP (Expendable Current Profiler) is mainly to measure current speed, direction and temperature. The paper is to research dynamic sinking data transmission technique for XCP. Data transmission medium is a varnished wire with diameter of 0.1mm, length of 1,800m and two parallel wires. Transmission characteristics of varnished wires can be tested by experiment and computation. The paper is to research and design a kind of base band transmission system and analyze its characteristics and performance. By utilizing digital base band signaling transmission technique, indoor and marine testing results show that designed data transmission system can reach 1,800m on varnished wires with diameter of 0.1mm if XCP probe sinks dynamically by speed of 4m/s and transmission speed is 2,400bps.

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The Research and Implementation of USB Communication Interface Circuit Based on FPGA

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.220-223.2032 ◽

2012 ◽

Vol 220-223 ◽

pp. 2032-2035 ◽

Cited By ~ 1

Author(s):

Cai Hong Wang ◽

Guang Feng Jin

Keyword(s):

Data Transmission ◽

Communication System ◽

Transmission Rate ◽

Transmission System ◽

Test Results ◽

Communication Interface ◽

Interface Circuit ◽

Usb Communication ◽

Data Transmission System ◽

Transmission Speed

This paper puts forward the design of communication system based on FPGA. USB controller CY7C68013 is widely used for its faster data transmission rate and diverse interface way which provide a simple and seamless connecting interface for the ATA, FPGA and DSP . This paper introduces the basic working principles of the controllers, and uses its affiliate FIFO method in order to produce corresponding control signal in FPGA with VHDL. It realizes fast data transmission between PC and FPGA through USB. Test results shows that the scheme transmission speed fast, data accurate, and can be extended to other need through the USB fast data transmission system.

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